JPH09255128A - Mounting structure of oscillating parts feeder bowl onto movable frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oscillating parts feeder whose bowl gives no relative rotation to a movable frame. SOLUTION: A conical tapered surface 53a is formed at a mounting member 53 at the bottom wall part of a bowl 22, below which a linear guide surface 53b is formed. Above a movable frame, a conical tapered surface 23c fitted to the guide surface 53a is formed, below which a linear guide surface 23b is formed. At the time of mounting the bowl 22 onto the movable frame, it is brought onto the movable frame, and the lower end part of the guide surface 53b is brought into contact with the tapered surface of the movable frame to guide it into a groove in the guide surface 23b. It is possible to conduct such mounting work as to make the bowl 22 give no relative rotation to the movable frame as at small bolt tightening force as possible by screwing a bolt 52 into the threaded hole 23e in the movable frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a vibrating parts feeder on a movable frame of a bowl.

[0002]

2. Description of the Related Art FIGS. 9 and 10 show a bowl of a conventional vibrating parts feeder. The vibrating parts feeder is designated by 50 as a whole, and a spiral track is provided in an almost mortar-shaped bowl 51. 52, the discharge end of which is a linearly extending track portion 52a.
The well-known linear vibrating feeder is connected to this with a slight gap, and this bowl 51 must be integrally fixed to the movable frame 55 as shown in FIG. A bolt 56 integral with the knob 53 made of plastic is inserted into a cylindrical portion 54 formed at the center of the bottom wall of the bowl 51, and screwed into a screw hole 55a formed at the center of the movable frame 55 and tightened. Are integrated by. Bowl 51 like this
Is widely used for small electronic parts, but its diameter is 2
It is small at about 0 cm and is precisely machined by lathe processing, but it is made of aluminum and cannot be welded to be fixed to the movable frame 55, so the above-described fixing method is used. Therefore, its processing cost is high, and it cannot be applied to a bowl of a large parts feeder. The movable frame 55 itself is made of a magnetic material (acts as a movable core) and faces a fixed electromagnet (not shown) with a gap. Alternatively, there is also one in which a movable core made of a magnetic material is fixed to a movable frame 55, and this is opposed to a fixed electromagnet with a gap.

In view of the above-mentioned problems, the applicant of the present invention has previously made it possible to easily attach a large vibrating parts feeder to a movable frame even for a bowl, and to simplify the processing for vibrating parts feeder. For the purpose of providing a structure for mounting the bowl on the movable frame, a bolt insertion opening is formed in the center of the bowl having a conical bottom and a spiral track formed on the inner peripheral wall surface.
In the central part of the lower movable frame, a screw hole is formed in alignment with the bolt insertion opening, and a conical recess having an apex angle smaller than the apex angle of the bottom part of the conical bowl is formed on the lower surface. A pressing block with a bolt insertion hole in the
The bowl is applied to the central portion of the bottom of the bowl, the bolt is inserted into the bolt insertion hole of the pressing block and the bolt insertion opening of the bowl, and the bolt is screwed into the screw hole of the movable frame to tighten the bowl. The mounting structure for the bowl to the movable frame in the vibrating parts feeder has been developed (Japanese Patent Application No. 6-190056).

However, in the above-mentioned mounting structure, since the central portion is fixed to the movable frame by only one bolt, there may be a rotational movement (torsional vibration) about the bolt depending on a processing error. If it is large, or if the central axis of this torsional vibration force is deviated from the bolt, or if it is deviated due to processing error, the bowl may move relative to the movable frame during long-time operation. In this case, the connection relation between this and the process connected to this, for example, the connection relationship with the linear vibrating feeder was surely accurate at the time of assembly, but if such a deviation exists, particularly small electronic parts are handled. In such a case, the bowl and the linear vibrating feeder connected thereto are also downsized accordingly, and the gap between them is small. Therefore, the relative rotation as described above eliminates or increases the gap between the discharge end of the bowl and the trough of the linear vibrating feeder. The intervals may vary.

In view of the above-mentioned problems, the present applicant has not changed the initial positioning relationship of the bowl with respect to the movable frame even when used for a long time, and therefore,
A spiral track is formed inside for the purpose of providing a structure for attaching the bowl to the movable frame in the vibrating parts feeder, which can maintain the connection relationship with the linear vibrating feeder, for example, which is succeeding to this. By causing the movable frame fixed to the bottom wall portion of the bowl to be torsionally vibrated by the torsional vibration drive section arranged below, the bowl is torsionally vibrated, and the parts are transferred along the track, In the bowl of the vibrating parts feeder fixed to the movable frame, the bolt is inserted into a bolt insertion opening formed in the central portion of the bottom wall, screwed into the screw hole of the movable frame, and tightened. In the mounting structure to the movable frame, the first taper surface is formed below the outer periphery of the bottom wall portion of the bowl, and A second taper surface that fits the taper surface is formed above the outer periphery of the frame, and a mounting structure for a bowl of a vibrating parts feeder to a movable frame is proposed (Japanese Patent Application No. 7-47736). .

FIG. 11 shows a mounting structure of the bowl to the movable frame, which is slightly different from the structure proposed above, but the gist thereof is the same. In FIG. 11, the vibrating parts feeder is indicated as a whole by 1, and the approximately cylindrical bowl 2 is connected to the movable frame 3 in a manner described later, which is equiangular with the lower disk-shaped base block 4. They are connected by leaf springs 5 that are inclinedly arranged at intervals.
A fixed electromagnet 6 around which an electromagnetic coil 7 is wound is fixed to the base block 4. The entire vibration parts feeder 1 is supported on the floor by vibration-proof rubber 8.

A track T made of a strip material is integrally formed on the inner wall surface of the bowl 2 in a spiral shape, and the bottom wall of the bowl 2 is concentrically provided with a cylindrical mounting member 11.
However, it is fixed by, for example, welding, and the cylindrical member 10 is fixed concentrically with the central opening 9a of the bottom wall portion 9 of the bowl 2 which is concentric with this. A conical tapered surface 3b is formed above the outer peripheral portion of the movable frame 3, and a screw hole 3a is formed in the central portion thereof.

A mounting block 12 having a through hole 12a is arranged in alignment with the central opening 9a of the bottom wall 9, and the bolts 13 are attached to the block 12, the central opening 9a, and the tubular member 10.
The tapered surface 11a, which is also conical in shape, is formed on the lower end portion of the cylindrical mounting member 11 by inserting it into the screw hole 3a of the movable frame 3 and tightening the screw hole 3a. In this way, before the bolt 13 is inserted and screwed and tightened, the bolt 13 is fitted and fixed to the tapered surface 3b formed in the upper portion of the movable frame 3. Although the bowl 2 and the movable frame 3 are firmly fixed to each other by the wedge effect of the tapered surface 11a of 11 and the tapered surface 3b of the movable frame 3, as shown exaggeratedly in FIG. Depending on the way of fitting with, when the bolt 13 is screwed and tightened with the right part fitted deeply in the figure (since it requires a degree of fitting play) and the left part fitted shallowly. But . In such a case, a large gap is generated between the lower end of the bowl 2 and the upper end surface of the movable frame 3 on the left and right. That gap A of the left part is greater than A 'on the right side, only this bowl 2
Is tilted with respect to the movable frame 3, but if it is used as it is, the above-mentioned wedge effect cannot be sufficiently obtained, and the tightening force is different between the left and right, so that it receives a long-term torsional vibration force and A The force to reduce the gap between the bolts 13 acts to weaken the screwing force of the bolt 13 to the screw hole 3a of the movable frame 3, and the bowl 2 may rotate relative to the movable frame 3 at the same time. is there.
With this, the effect of the mounting structure made to overcome the drawbacks of the prior art cannot be fully exerted.

On the other hand, Japanese Utility Model Laid-Open No. 7-31722 discloses a structure which facilitates attachment of a bowl to a movable frame (though it is made up of three members), and an opening is formed at the center of the bowl. It is made to be formed, and a bolt is inserted through this, and is screwed and tightened in a screw hole of the lower flange corresponding to a part of the movable frame so as to be fixed to this lower flange. In this publication, the upper flange 9 is interposed between the bowl and the lower flange. Although the upper flange and the lower flange are disc-shaped as a whole, a tapered surface is formed on their outer peripheral edge portions. I am letting you. This says that the upper flange, that is, the bowl, can be "aligned" with the lower flange, but it is also necessary to fix it to the lower and upper flanges corresponding to the movable frame with one bolt at the center of the bowl. Therefore, if there is an assembly error or a dimensional error between these members, a problem similar to the mounting structure previously developed by the applicant will occur.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can prevent the relative rotation between the bowl and the movable frame even when subjected to a torsional vibration force for a long time. An object is to provide a structure for mounting a bowl on a movable frame.

[0011]

[Means for Solving the Problems] The above problems are solved by causing a movable frame fixed to the bottom wall of a bowl having a spiral track formed therein to be torsionally oscillated by a torsional vibration drive unit disposed below. As a result, the bowl is torsionally oscillated so that parts are transferred along the track, and the bowl inserts a bolt into a bolt insertion opening formed in the central portion of the bottom wall portion, and a screw hole of the movable frame. In the mounting structure of the vibrating parts feeder fixed to the movable frame to the movable frame of the bowl by screwing and tightening to the movable frame, the conical first taper surface and the first tapered surface are formed below the outer periphery of the bottom wall of the bowl. A first conical second guide surface that is connected to the first tapered surface to form a vertical cylindrical first guide surface and that fits with the first tapered surface above the outer periphery of the movable frame. A bowl for a vibrating parts feeder, characterized in that a cylindrical second guide surface that is vertical and has a diameter larger than that of the first guide surface is formed so as to be connected to the upper surface and the second tapered surface. It is solved by the mounting structure to the movable frame. With this mounting structure, before the first tapered surface formed below the outer periphery of the bottom wall of the bowl,
The first guide surface, which is connected to this, comes into contact with the second tapered surface formed above the outer periphery of the movable frame, so that the bowl is greatly tilted to the right or left. The first guide surface of the second frame of the movable frame
The first guide surface on the bowl side is guided by the second guide surface of the movable frame so that the bowl is accurately and concentrically arranged with respect to the movable frame. , The bowl-side first tapered surface is fitted to the second tapered surface of the movable frame. By tightening the bolts on this, the wedge effect can be surely received, and the wedge effect can be obtained evenly at 360 degrees, so that it is possible to move with this bowl with the minimum bolt tightening force to obtain a predetermined fixing force. Integration with the frame can be achieved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a vibrating parts feeder according to an embodiment of the present invention is indicated by 21 as a whole, and a movable frame 23 is provided at the bottom of a cylindrical bowl 22.
Are attached as will be described later, and they are connected to the base block 24 by equiangular leaf springs 26 at equal angular intervals (in the embodiment of the present invention, 90 points at four places). Further, it is supported on the floor S by a vibration isolation mechanism 25 which will be described later.

The movable frame 23, as shown in FIG. 2, is substantially L-shaped when viewed in plan at equal angular intervals (90 degree intervals).
A letter-shaped notch 23a is formed. This is further illustrated by the leaf spring mounting surface 23a as shown in FIG.
b and a leaf spring side regulating surface 23aa are formed at a right angle thereto. Further, as clearly shown in FIG. 7, an annular groove 23b is formed in the upper portion of the movable frame 23, and a screw hole 23e is further formed in the center of the movable frame 23. A tapered surface 23c having a shape is formed.

A circular recess 23f is formed in the center of the bottom wall of the movable frame 23, and an armature 2 made of a magnetic material is formed in the recess 23f.
8 is fixed. In addition, as described above, the annular groove 23b
By forming the projection, a protrusion 23d is formed in the central portion, and the above-described screw hole 23e is provided in this.

The base block 24 has the shape shown in FIGS. 3, 4 and 5, and has a so-called H-shaped cross section. This base block 24 also has an upper movable frame 2
Corresponding to the three cutouts 23a, four cutouts 24a having a substantially L-shaped planar shape are formed.
A leaf spring mounting surface 24ab is formed at one end of aa, and a regulation surface 24ac for the leaf spring side portion is further formed at a right angle thereto. At the other end of the bottom wall surface 24aa, the vibration isolation mechanism 2
5 are provided. The base block 24 has a substantially H-shaped cross section as described above.
A cylindrical round hole 24b is formed on the upper side of which an electromagnet 6 wound with an electromagnetic coil 7 is fixed, and faces the armature 14 described above with a gap g. The horizontal plate portion 24d is formed by scribing the base block from above and below, and is located considerably above the floor S, but a thick portion 24e is formed on the outer peripheral portion thereof. The upper and lower ends of the leaf spring 26 are applied by aligning the bolt insertion holes with the screw holes formed in the leaf spring mounting surfaces 23ab and 24ab, and are fixed to the respective bolts B by applying a pad 27. There is.

As is well known, a spiral spiral track 22a made of a strip plate is integrally formed in the bowl 22, and the bottom wall 22b thereof is in the shape of a hat.
The mounting block 50 is arranged on the top of the central hole 50.
a and a central hole 2 formed at the center of the bottom 22b of the bowl
The cylindrical member 51 is welded and fixed in line with 2ba and further in line with this. Concentrically with this, a substantially cylindrical mounting member 53 is welded and fixed to the outside, and the lower part of this is a conical first tapered surface 53a, which is further connected to this and has a linear first part downward. One guide surface 53b is formed.
The first guide surface 53b has a cylindrical shape, but is smaller than the outer diameter of the annular groove 23b formed in the movable frame 23 described above. The first tapered surface 53a is the second on the movable frame 23 side.
The tapered surface 23c and the tapered surface 23c are fitted to each other as shown in FIG. The outer peripheral side surface of the annular groove 23b serves as the second guide surface.

FIG. 6 shows details of the anti-vibration rubber mechanism 25 of the present embodiment. The height adjusting bolt 4 is shown in FIG.
The space between 2 and the bottom wall portion 24aa of the base block 24 is smaller than that shown in FIG. 5 (depending on the height to be adjusted), but a lock nut LN is interposed therebetween. By adjusting the height adjusting bolt 42,
After adjusting the height of the base block 24, by tightening the lock nut LN, the height adjusting bolt 4
2 is rotated by vibration for a long time so that the height does not change. The washer 38b fixed to the lower surface of the anti-vibration rubber body 37 extends radially outward of the bowl 22 and has an elongated hole 38ba in the extending portion, as clearly shown in FIG. After adjusting the relative height of the base block 24 to the floor S, the nut 43 is fixed at this height by tightening the nut 43. Before tightening the nut 43, the lower surface of the vibration-proof rubber main body 37 is fixed. Washer 3 fixed to
8b along the circumferential direction of the bowl 22 as shown in FIG.
It can be rotated in any direction. Therefore, when fixing the vibrating parts feeder 21 to the floor S, the entire vibrating parts feeder 21 can be moved to the left, right, front and back with respect to the mounting position, and the bolt 1 can be attached to the screw hole Sa of the already formed floor S.
00 is inserted into the long hole 38ba of the washer 38b and screwed and fastened to the long hole 38ba, so that the vibrating parts feeder 21 is fixed to the floor S
However, this increases the degree of freedom of this mounting position.

Next, the assembling operation and action in the embodiment of the present invention will be described.

As shown in FIG. 7, the bowl 22 is brought to the movable frame 23 from above. The linear guide surface 5 of the mounting member 53 fixed to this bottom wall portion.
The cylindrical portion P having 3b is brought into contact with the tapered surface 23c formed on the upper surface of the movable frame 23. At this time, the bowl 22 is largely tilted as shown by the alternate long and short dash line, so that the assembling operator can recognize that the bowl 22 is not correctly set on the movable frame 23, and the tapered surface of the movable frame 23 can be recognized. Guide surface 5 on 23c
The tubular portion P having 3b slides and automatically fits into the groove 23b on the movable frame 23 due to gravity. As a result, the bowl 22 is properly set as shown in FIG. 1 while being aligned with the movable frame 23. After that, the mounting block 50 is mounted on the bottom wall portion 22b of the bowl 22 and the central hole 50
a is aligned with the central opening 22ba of the bottom wall portion 22b, the bolt 52 is inserted through the central holes 50a, 22ba, and the tubular member 51, and is screwed into the screw hole 23e formed at the center of the movable frame 23. Then tighten. At this time, the taper surface 53a of the mounting member 53 is changed to the taper surface 2 of the movable frame 23.
Although it is tightened while sliding on 3c, the wedge effect works and a strong fixing force is generated. Bolt 5 again
With the tightening of 2, the mounting block 50 presses the bottom wall portion 22a of the bowl 22, which is in the shape of a hat, but the angle between them is large, that is, close to 180 degrees (as shown in FIG. 5), and tubular. The lower end surface of the member 51 is the movable frame 23.
The tightening work is completed by abutting on the protrusion 23d, but due to the above-mentioned wedge effect, the tightening force by the bolt 52 is not so large, that is, before the tubular member 51 abuts. Even if the lower end surface is not so far apart from the protrusion 23d of the movable frame 23, the bowl 22 is
Since it is fixed by the wedge effect while being uniformly pressed against the side tapered surface 53a, it is possible to attach the bowl 22 to the movable frame 23 with a stronger fixing force than before while minimizing the tightening force. That is, when alternating current is applied to the coil 7, an alternating magnetic attraction force is generated, and the bowl 22 generates a torsional vibration force around the central axis cc shown in FIG. 5, which is the circumferential direction of the tapered surfaces 53a and 23c. Since it is almost parallel, if the bowl 22 is mounted in a tilted manner as in the conventional case, the bowl 22 rotates relatively to the movable frame 23 due to the non-uniform fixing force, and There was a risk that the feeding operation would not be performed. However, according to the embodiment of the present invention, the fixing force due to the wedge effect of the tapered surfaces 53a and 23c uniformly causes the bowl 2 to be almost semi-permanently.
It is possible to maintain the initial mounting state of the second movable frame 23.

According to the embodiment of the present invention, the above-described actions and effects are exhibited, and further, the following actions and effects are also provided. That is, as clearly shown in FIG. 3, the base block 24 is formed with notches 24a having a substantially L shape in a planar shape at equal angular intervals, and the bottom wall portion 24aa is provided with the vibration isolation mechanism 25. Since it is provided and the mounting surface 24ab of the leaf spring 26 is also formed, the space for disposing these with respect to the outer peripheral portion of the base block 24 is made as small as possible, and further, as clearly shown in FIG. Has a substantially H-shaped cross section, the moment of inertia about the central axis cc can be maximized for the same weight, and in particular, the thickness of the horizontal plate portion 24d to which the electromagnet 6 is fixed is Since it is small and this is a portion close to the center line cc, the moment of inertia of the base block 24 with respect to the center line cc can be maximized especially for the same weight. Further, when an alternating current is applied to the coil 7 of the electromagnet 6, a magnetic alternating force is generated between the armature 14 and the armature 14. This is in the vertical direction, and particularly when the inclination angle of the leaf spring 26 with respect to the vertical is small, Since the force component in the horizontal direction is large, it is possible to obtain a desired torsional swing while making the current flowing through the coil 7 small. At this time, as is well known, the leaf spring 26 has a structure as shown in FIG. In addition, torsional vibration is generated along the longitudinal centerline Q, and the upper and lower ends are centered on the node N at positions that are inversely proportional to the moment of inertia of the bowl 22 and the moment of inertia of the base block 24, respectively. As shown in FIG. 8B, the natural shape shown in FIG.
If the moment of inertia of 4 is small, the torsional amplitude becomes large for the same alternating magnetic attraction force, and since the phase of the torsional vibration of the bowl 22 is changed by 180 degrees, the torsional amplitude of the bowl 22 and the base are The sum of the torsional amplitude of the block 24 becomes large, and the large bending stress is applied to the leaf spring 26 accordingly. Further, the current flowing through the coil 7 must be made large in order to generate this bending stress. According to this, the moment of inertia of the base block 24 can be made smaller than a predetermined torsional swing with respect to the bowl 22, so that the total torsional swing of the leaf spring 24 can be made small. Further, by generating the vertical attractive force, the current flowing through the coil 7 can be further reduced. That is, the current flowing through the coil 7 can be reduced. Further, the bending stress applied to the leaf spring 26 can be reduced to prolong the life. According to the vibration isolation mechanism 25, the height of the base block 24 with respect to the floor S can be adjusted by rotating the height adjusting bolt 42 while the nut 43 is loosened. With the mounting structure according to the embodiment of the present invention,
Since the parts feeder 21 as a whole can be mounted horizontally with respect to the floor S, the parts to be transferred on the track 22a can be aligned more efficiently than before. Further, since the vibration isolation mechanism 25 is formed on the outer peripheral portion of the base block 24 so as to be easily accessed from the outside, this adjustment can be made simple.

Further, according to the embodiment of the present invention, the upper and lower ends of the leaf spring 26 are fixed to the leaf spring mounting surfaces 23ab and 24ab of the movable frame 23 and the base block 24 by the bolts B as described above. Although the contact plate 27 rotates about the shaft center of the bolt B due to the frictional force caused by the rotation and tightening of the bolt B, according to the embodiment of the present invention, the mounting surfaces 23ab and 24ab. It comes into contact with the leaf spring side surface restricting surfaces 23aa and 24ac orthogonal to and does not allow further rotation. Therefore, this leaf spring 26
Installation work is also easy. In addition, according to the embodiment of the present invention, since one leaf spring is used, a thin flat plate spacer is not provided unlike a laminated leaf spring, but the effect is particularly large when this spacer is interposed. .

Although the embodiments of the present invention have been described above, needless to say, the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment of the present invention,
The cross-sectional shape of the base block 24 is almost H-shaped, and an electromagnet is arranged in the center hole of the base block 24 to eliminate the need for a conventional cylindrical cover. The invention is applicable.

FIG. 12 shows a modified example of the bowl B and the movable frame F. The bowl B having such a shape has a conical first guide surface Ba on the bottom wall and a vertical first guide surface Ba connected to the first guide surface Ba. 1 guide surface Bb is formed, a second tapered surface Fa is formed on the upper portion of the movable frame F, and a second vertical guide surface Fb that is connected to the second tapered surface Fa is formed vertically.
The first guide surface Rb (more accurately, the first guide surface of the bowl B).
The lower end forming the guide surface Bb) is movable frame F
Alternatively, the bowl B and the movable frame may be integrated with each other by the bolt W after the bowl B is positioned as shown in the drawing while sliding on the second taper surface Fa. It is obvious that such a modified example also has the same effect as that of the above-described embodiment.

Further, although FIG. 13 shows another modification, the bowl B'is cylindrical like the above-mentioned embodiment, and the ring-shaped mounting member R is provided on the bottom wall portion thereof as in the above-mentioned embodiment. They are fixed concentrically and the conical first wall is attached to the inner wall surface.
A tapered surface Ra is formed, and a first guide surface Rb which is vertical is formed in contact with the tapered surface Ra. A conical second taper surface Fa 'is formed on the upper part of the movable frame F', and a vertical second guide surface F'b is formed on the conical second taper surface Fa '. Although it is possible to take a fitting state as shown in the drawing, the bowl B ′ is brought from above onto the movable frame F ′, and the first guide surface Rb of the ring-shaped mounting member R (correctly, this is The lower end of the movable frame F ′ is slid on the second taper surface F′a of the movable frame F ′ so as to be aligned as shown by the weight of the bowl B ′. The movable frame F ′ may be integrated. It is obvious that the same effects as those of the above-described embodiment can be obtained in such a modified example as well.

[0026]

As described above, according to the present invention, the mounting of the bowl on the movable frame that determines the relative position with respect to the base block is performed with a uniform and strong fixing force while minimizing the tightening force of the bolt. It can be fixed.

[Brief description of drawings]

FIG. 1 is a side view of a vibrating parts feeder according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG. 1 with a bowl removed.

FIG. 3 is a plan view of FIG. 2 with the movable frame removed.

FIG. 4 is a partially cutaway perspective view with a bowl removed.

FIG. 5 is a sectional side view of the same.

FIG. 6 is an enlarged cross-sectional view of a vibration isolation mechanism according to the same embodiment.

FIG. 7 is an exploded cross-sectional view showing an assembly work situation of the movable frame of the bowl according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a twisted and bent state of a leaf spring in the same embodiment, where A is a perspective view of the leaf spring subjected to twisted bending, and B is a perspective view of a natural state.

FIG. 9 is a plan view of a conventional vibrating parts feeder.

FIG. 10 is a partially cutaway side view of the same vibration parts feeder.

FIG. 11 is a side sectional view showing how the bowl is attached to the movable frame in the vibrating parts feeder of another conventional example.

FIG. 12 is a partially cutaway side view showing a mounting state on a bowl and a movable frame of a modified example.

FIG. 13 is a partially cutaway side view showing a mounting state of a bowl and a movable frame of another modified example.

[Explanation of reference numerals] 21 bowl 23 movable frame 23a taper surface 23b guide surface 24 base block 26 leaf spring 50 mounting block 52 bolt 53 mounting member 53a tapered surface 53b guide surface b bowl b 'bowl ba first tapered surface bb first guide Surface F Movable Frame F ′ Movable Frame Fa Second Tapered Surface Fa ′ Second Tapered Surface Fb Second Guide Surface Fb ′ Second Guide Surface Ra First Tapered Surface Rb First Guide Surface

Claims (4)

[Claims] 1. The bowl is torsionally vibrated by causing a movable frame fixed to the bottom wall of the bowl having a spiral track formed therein to be torsionally vibrated by a torsional vibration drive section disposed below. , The parts are transferred along the track, the bowl is inserted with a bolt through a bolt insertion opening formed in the central portion of the bottom wall portion, screwed into a screw hole of the movable frame, and tightened, In the mounting structure of the vibrating parts feeder fixed to the movable frame to the movable frame of the bowl,
A first tapered surface having a conical shape is formed below the outer periphery of the bottom wall portion of the bowl, and a first cylindrical surface which is connected to the first tapered surface and has a vertical shape.
A guide surface is formed, and a conical second taper surface that fits with the first taper surface above the outer periphery of the movable frame, and is connected to the second taper surface, is vertical, and has the first guide surface. A structure for attaching a vibrating parts feeder to a movable frame of a bowl, characterized in that a cylindrical second guide surface having a larger diameter is formed. 2. The pressing member having a conical shape, the bottom wall of which has a conical recess having an apex angle smaller than the apex angle of the bottom of the conical bowl, and a bolt insertion hole in the center. By applying the block to the central portion of the bottom of the bowl, inserting the bolt into the bolt insertion hole of the pressing block, the bolt insertion opening of the bowl, and screwing the screw into the screw hole of the movable frame, and then tightening. The mounting structure of the bowl to the movable frame in the vibrating parts feeder according to claim 1, wherein the bowl is fixed to the movable frame. 3. A cylindrical body is fixed to an outer bottom wall surface of a central portion of the bowl so as to be aligned with the bolt insertion opening, and the bolt is also inserted into the cylindrical body. The bowl of the vibrating parts feeder according to claim 2, wherein the lower end surface of the cylindrical body is in contact with the outer peripheral edge portion of the screw hole of the movable frame, but is separated from the upper surface of the movable frame with a tightening force less than that. Mounting structure to the movable frame. 4. A ring-shaped cylindrical body is concentrically fixed to the outer peripheral edge of the bottom of the bowl, and the first tapered surface and the first guide surface are formed at the lower end of the ring-shaped cylindrical body. The structure for mounting a bowl on a movable frame in the vibrating parts feeder according to Item 3.